I am using Swype on iPhone 7. The popped up cached is annoying. how can I remove the keyboard cache, thanks

it's easy to reset the keyboard dictionary on iPhone and iPad

Launch the Settings app on your iPhone or iPad.
Tap on General.
Tap on Reset, you'll have to scroll all the way to the bottom.
Tap on Reset Keyboard Dictionary.
Type in your password when prompted. You'll only get this step if you have a password enabled.
Tap on Reset Dictionary in the popup menu to confirm you'd like to reset the keyboard dictionary.

Launch the Settings app on your iPhone or iPad.
Tap on General.
Tap on Reset, you'll have to scroll all the way to the bottom.
Tap on Reset Keyboard Dictionary.
Type in your password when prompted. You'll only get this step if you have a password enabled.
Tap on Reset Dictionary in the popup menu to confirm you'd like to reset the keyboard dictionary.